Dear Team,
Could you please help to confirm that DSI86 could support 4K 30fps 24bpp panel or not?
Thank you.
Regards,
Jim
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Jim
Pixel clock = 297MHz
Stream rate = 297 * 24 = 7.128G
Max DSI data lane = 8
DSI_CLK = 7.128 / (2x8) = 445.5MHz
So DSI86 can support 4k@30 with 24bpp, but you have to use all 8 DSI lanes.
Thanks
David
Hi David,
My customer used SoC is Qualcomm 810.
The spec mentions that it’s (4096 × 2160 with FBC (two MIPI combined)).
Can this IC(SN65DSI86) support FBC method?
Thank you.
Regards,
Jim
Jim
The DSI86 expects the GPU to provide video timing events and active pixel data in the proper order in the form of a real-time pixel stream. Please refer to section 8.4.4.5 and make sure Qualcomm follows the DSI specification [DSI]. The timing events can be provided in one of two types: Sync Pulses, and Sync Events. The vsupports both types. For the Sync Pulse type of timing event, the GPU will send VSYNC START (VSS), VSYNC END (VSE), HSYNC START (HSS), and HSYNC END (HSE) packets. For Sync Event type, the GPU will only send the sync start packets (VSS and HSS). For both types of timing events, the DSIx6 will use the values programmed into the Video Registers to determine the sync end events (VSE and HSE). Please note when configured for dual DSI channels, the SN65DSI86 will use VSS, VSE, and HSS packets from channel A. The DSIx6 will use channel A events to recreate the same timings on the DisplayPort interface. The VSS, VSE, and HSS packets from channel B are used to internally align data on channel B to channel A.
Thanks
David
Hi David,
Could you help to confirm if SN65DSI86 support 3840x2160@60Hz,8 bits color(24bpp)? They still require to use all 8 DSI lanes, am I right?
Thank you.
Regards,
Jim
Jim
No, we can only support 4k@60Hz 18bpp, but not 24bpp. Please take a look at this FAQ: https://e2e.ti.com/support/interface/f/138/t/797238.
Thanks
David